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compare: hanrenchun:4964c7e207469b934eb501811a0ff31f629344da
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1 changed files with 3 additions and 95 deletions
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app/src/main/java/com/pxkj/jwzs/FirstActivity.java
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@ -34,7 +34,6 @@ public class FirstActivity extends BaseActivity {
private static final String TAG = "FirstActivity";
private WebView webView;
protected WebViewLogger webViewLogger;
private final Handler handler = new Handler(Looper.getMainLooper());
// 扩展的 MIME 类型映射
private static final Map<String, String> MIME_TYPES = new HashMap<>();
@ -53,27 +52,6 @@ public class FirstActivity extends BaseActivity {
MIME_TYPES.put("woff2", "font/woff2");
MIME_TYPES.put("ttf", "font/ttf");
MIME_TYPES.put("wasm", "application/wasm");
MIME_TYPES.put("pdf", "application/pdf");
MIME_TYPES.put("zip", "application/zip");
MIME_TYPES.put("rar", "application/x-rar-compressed");
MIME_TYPES.put("7z", "application/x-7z-compressed");
MIME_TYPES.put("csv", "text/csv");
MIME_TYPES.put("txt", "text/plain");
MIME_TYPES.put("mp3", "audio/mpeg");
MIME_TYPES.put("mp4", "video/mp4");
MIME_TYPES.put("mov", "video/quicktime");
MIME_TYPES.put("webm", "video/webm");
MIME_TYPES.put("ogg", "audio/ogg");
MIME_TYPES.put("wav", "audio/wav");
MIME_TYPES.put("eot", "application/vnd.ms-fontobject");
MIME_TYPES.put("otf", "font/otf");
MIME_TYPES.put("doc", "application/msword");
MIME_TYPES.put("docx", "application/vnd.openxmlformats-officedocument.wordprocessingml.document");
MIME_TYPES.put("xls", "application/vnd.ms-excel");
MIME_TYPES.put("xlsx", "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
MIME_TYPES.put("ppt", "application/vnd.ms-powerpoint");
MIME_TYPES.put("pptx", "application/vnd.openxmlformats-officedocument.presentationml.presentation");
}
@Override
@ -237,23 +215,10 @@ public class FirstActivity extends BaseActivity {
// || url.endsWith(".xlsx")
// || url.contains("/api/file/");
}
private long currentDownloadId = -1; // 保存当前下载任务ID
private void downloadFile(String url) {
try {
if (TextUtils.isEmpty(url)) {
Toast.makeText(this, "下载地址为空", Toast.LENGTH_SHORT).show();
return;
}
if (url.startsWith("blob:") || url.startsWith("data:")) {
Toast.makeText(this, "无法直接下载 Blob 文件，请检查前端下载逻辑", Toast.LENGTH_SHORT).show();
return;
}
Uri uri = Uri.parse(url);
DownloadManager.Request request = new DownloadManager.Request(uri);
DownloadManager.Request request = new DownloadManager.Request(Uri.parse(url));
String fileName = URLUtil.guessFileName(url, null, null);
request.setTitle(fileName);
request.setDescription("正在下载文件...");
@ -262,73 +227,16 @@ public class FirstActivity extends BaseActivity {
request.allowScanningByMediaScanner();
request.addRequestHeader("User-Agent", System.getProperty("http.agent"));
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
request.setRequiresCharging(false);
request.setAllowedOverMetered(true);
request.setAllowedOverRoaming(true);
}
String mimeType = getMimeTypeForUrl(url);
request.setMimeType(!TextUtils.isEmpty(mimeType) ? mimeType : "application/octet-stream");
DownloadManager dm = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
if (dm != null) {
currentDownloadId = dm.enqueue(request);
Toast.makeText(this, "文件已开始下载，请等待", Toast.LENGTH_SHORT).show();
startDownloadProgressMonitor(dm, currentDownloadId);
} else {
Toast.makeText(this, "系统下载服务不可用", Toast.LENGTH_SHORT).show();
}
dm.enqueue(request);
Toast.makeText(this, "文件已开始下载，完成后可在通知栏查看", Toast.LENGTH_SHORT).show();
} catch (Exception e) {
e.printStackTrace();
Toast.makeText(this, "下载失败: " + e.getMessage(), Toast.LENGTH_SHORT).show();
}
}
/**
* ✅ 监控下载进度，每秒回调一次到前端
*/
private void startDownloadProgressMonitor(DownloadManager dm, long downloadId) {
new Thread(() -> {
DownloadManager.Query query = new DownloadManager.Query();
query.setFilterById(downloadId);
boolean downloading = true;
while (downloading) {
try {
Thread.sleep(1000);
android.database.Cursor cursor = dm.query(query);
if (cursor != null && cursor.moveToFirst()) {
int status = cursor.getInt(cursor.getColumnIndex(DownloadManager.COLUMN_STATUS));
long total = cursor.getLong(cursor.getColumnIndex(DownloadManager.COLUMN_TOTAL_SIZE_BYTES));
long downloaded = cursor.getLong(cursor.getColumnIndex(DownloadManager.COLUMN_BYTES_DOWNLOADED_SO_FAR));
if (status == DownloadManager.STATUS_RUNNING && total > 0) {
int progress = (int) ((downloaded * 100L) / total);
handler.post(() -> sendProgressToJs(progress));
} else if (status == DownloadManager.STATUS_SUCCESSFUL) {
downloading = false;
handler.post(() -> sendProgressToJs(100));
} else if (status == DownloadManager.STATUS_FAILED) {
downloading = false;
handler.post(() -> sendProgressToJs(-1));
}
cursor.close();
}
} catch (Exception ignored) {}
}
}).start();
}
private void sendProgressToJs(int progress) {
try {
if (webView != null) {
String js = String.format("if(window.onDownloadProgress){window.onDownloadProgress(%d);}", progress);
webView.evaluateJavascript(js, null);
}
} catch (Exception ignored) {}
}
public static class JsBridge {
private final WeakReference<FirstActivity> activityRef;